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題 名 | The Significance of Mycobacterium tuberculosis Antibody, Antigen 60 IgG in Patients with Abnormal Chest Radiography=肺結核抗體及抗原60免疫球蛋白在不正常胸部X光片病患的重要性 |
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作 者 | 吳黃平; 謝文斌; 謝芳貴; 花仲涇; | 書刊名 | 長庚醫學 |
卷 期 | 27:12 2004.12[民93.12] |
頁 次 | 頁869-876 |
分類號 | 415.462 |
關鍵詞 | 抗原60免疫球蛋白; 肺結核病; 血液學試驗; Antigen 60 IgG; Tuberculosis; Serologic test; |
語 文 | 英文(English) |
中文摘要 | 背景:肺結核病的確定診斷是經由在痰液或組織中找到嗜酸性結核桿菌。但是此方法卻有些限制。目前利用血液學試驗診斷肺結核已經有一段時間。此實驗的目的在探討抗原60免疫球蛋白,在不正常胸部X光片病患用來診斷肺結核病的敏感度及特異性;評估抗原60免疫球蛋白在肺結核病血液學診斷的應用。 方法:我們收集西元2001年1月到西元2002年12月中診斷為肺結核病(N=178)、其他非肺結核肺部疾病(N=34)、無肺部疾病的健康人(N=117)的資料,包括抗原60免疫球蛋白濃度、胸部X光片判讀、細菌培養及病理組織報告。抗原60免疫球蛋白的截止數值是根據ROC統計方法來決定。我們依此抗原60免疫球蛋白的截止數值來計算敏感度、特異性、陽性預估值、陰性預估值、陽性及陰性反應可能比率。 結果:抗原60免疫球蛋白的截止數值為261.2單位,敏感度為49.4%,特異度為79.5%。在不正常胸部X光片病患中,陽性預估值為95.7%,陽性反應可能比率為4.20。在不正常胸部X光片及痰液鏡檢陰性嗜酸性結核桿菌病患中,陽性預估值為88.2%,陽性反應可能比率為2.97。 結論:因為此試驗有高陽性預估值及可能比率,在一個不正常胸部X光片病患,有陽性抗原60免疫球蛋白試驗可以幫助我們下一個正確的肺結核病臨床診斷。 |
英文摘要 | Background: The identification of acid-fast bacilli (AFB) in sputum or tissue is the definite diagnosis of tuberculosis. However, this method of diagnosis is restricted by certain limitations. The serologic diagnosis of tuberculosis has been used for a long time. The aim of this study was to determine the sensitivity and specificity of Antigen 60 (A60) immunoglobulin G (IgG) in patients with abnormal chest radiography and to assess its application in the serologic diagnosis of pulmonary tuberculosis. Methods: Data on patients who had been diagnosed using results of culture and pathology as having active pulmonary tuberculosis (N=178), other non-tuberculosis pulmonary disease (N=34), or no pulmonary disease (N=117) was collected from January 2001 through December 2002. The data of A60 IgG using enzyme-linked immunosorbent assay (ELISA), chest radiography, tuberculosis culture and pathology were obtained retrospectively. The cutoff value of A60 IgG was chosen according to a receiver operating characteristic (ROC) analysis. The sensitivity, specificity, positive predictive value, negative predictive value and likelihood ratio for positive and negative test were determined. Results: The chosen cutoff value of 261.2 value of 261.2 units defined the sensitivity (49.4%) and specificity (79.5%) of the test. The positive predictive value and likelihood ratio were 95.7% and 4.20, respectively, for patients with abnormal chest radiography and 88.2% and 2.97%, respectively, for patients with abnormal chest radiography and negative AFB in sputum smear. Conclusions: Because of the high positive predictive value and likelihood ratio, a positive A60 IgG test in the presence of an abnormal chest radiography can help make an accurate clinical diagnosis of pulmonary tuberculosis. |
本系統中英文摘要資訊取自各篇刊載內容。